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LostPass: Pixel-perfect LastPass Phishing

LastPass holds all of your secrets. Its login prompts and alerts occur within the browser window, which attackers can control. When the victim visits the target site–which can look completely inconspicuous, such as a news website–after a delay a LastPass notification will appear if the user has LastPass installed prompting the user to log in because their session has expired. The log in screen, which always appears within the browser window, is customized for each browser and operating system to appear pixel perfect. This sends the user’s credentials to the attacker, and then can be prompted for two-factor authentication if required. The attacker can then use the LastPass API to remotely download and decrypt all passwords, credit cards, and secure notes. The LostPass tool will be presented for download.

Sean (@sean_a_cassidy) is the CTO of Praesidio, a cloud-based cybersecurity startup that secures financial institutions. He has written numerous open source tools and guides and has been in the infosec community for over a decade.